EP3874193B1 - Druckschleuse - Google Patents

Druckschleuse Download PDF

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Publication number
EP3874193B1
EP3874193B1 EP19809258.7A EP19809258A EP3874193B1 EP 3874193 B1 EP3874193 B1 EP 3874193B1 EP 19809258 A EP19809258 A EP 19809258A EP 3874193 B1 EP3874193 B1 EP 3874193B1
Authority
EP
European Patent Office
Prior art keywords
pressure airlock
piece
seal
core
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19809258.7A
Other languages
English (en)
French (fr)
Other versions
EP3874193A1 (de
Inventor
Stephen E. RICHEY
Carey C. COSTLE
Grant Peter Aj OJEDA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP3874193A1 publication Critical patent/EP3874193A1/de
Application granted granted Critical
Publication of EP3874193B1 publication Critical patent/EP3874193B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • F16L37/35—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied at least one of the valves having an axial bore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C29/00—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
    • B60C29/06—Accessories for tyre-inflating valves, e.g. housings, guards, covers for valve caps, locks, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C29/00—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
    • B60C29/06—Accessories for tyre-inflating valves, e.g. housings, guards, covers for valve caps, locks, not otherwise provided for
    • B60C29/064—Hose connections for pneumatic tyres, e.g. to spare wheels

Definitions

  • the invention relates to a pressure airlock for a gauge or an inflator.
  • a typical interface in a gauge or inflator in the prior art includes a face seal within the valve interface to seal against the valve stem.
  • the seal is easily broken or not maintained when the valve face does not make consistent planar contact with the seal, causing escaping air.
  • the escaping ("hissing") air can lead to inaccurate pressure readings, inefficient inflation and/or customer confusion on proper product use and/or function.
  • US2014/190576A1 relates to a horizontally-triggerable inflation connector.
  • US20170276278A1 relates to an attachment for an air valve.
  • a pressure airlock may include one of two configurations.
  • a first configuration not according to the invention, a single (one piece) seal is formed in such a manner that when a valve stem enters the seal, the seal will make contact with the threads of the valve stem, creating a sealing area, and as the valve stem continues to move deeper into the seal, it will make contact with a perpendicular surface of the seal positioned on an inner shoulder of the pressure airlock. This creates a seal on the end or face of the valve stem as well. The combination of these sealing areas defines the pressure airlock as described. In this manner, the "hissing" of a typical such engagement is avoided.
  • a combination of two separate seals is used to accomplish the same sealing arrangement as noted in the first configuration.
  • the two seals preferably perform the same function as a one-piece seal but would permit different seal hardness options for optimum user "feel" during product usage.
  • two different seals would permit use of different colors and/or other different properties.
  • Figs. 1-5 show a pressure airlock 5.
  • the pressure airlock is preferably for use in connection with an inflator for inflating a standard pneumatic valve or a tire gauge for determining an air pressure from a standard pneumatic valve.
  • a standard pneumatic valve as described herein preferably includes a valve stem 10 having exterior threads 20 and a valve core 30 that, when depressed, permits the ingress or egress of air into the tire or inflated object.
  • tire is generally used herein to described the inflated object, the subject invention may be used in connection with any inflated object that includes a conventional valve stem 10.
  • Figs. 1 and 2 show a cross-sectional and front view, respectively, of one exemplary embodiment of the pressure airlock not according to the invention.
  • Figs. 3 and 4 show a cross-sectional and front view, respectively, of an embodiment of the pressure airlock according to the invention.
  • Fig. 5 shows a close-up of the pressure airlock shown in Fig. 1 .
  • the pressure airlock includes a conduit 50 in fluid communication with the inflator or the gauge.
  • the conduit 50 preferably permits the free flow of air between the inflator or gauge and the valve stem 10.
  • the conduit 50, and indeed, the remaining operative "hard” portions of the pressure airlock may be formed of metal, plastic or any other durable material suitable for the described application.
  • a tip 60 preferably extends from the conduit 50.
  • the tip 60 includes a bore 70 that permits engagement with the valve stem 10.
  • an O-ring 65 may be positioned between the tip 60 and the conduit 50.
  • the bore 70 preferably corresponds in size with the exterior threads 20 of the valve stem 10 to create a tight engagement between the pressure airlock and the valve stem 10.
  • the tip 60 may be integrated into the conduit 50 as a unitary component without the O-ring 65.
  • a core depressor 80 is positioned within the bore 70.
  • the core depressor 80 is preferably configured to engage with the valve core 30 of the valve stem 10 to permit inflation into the tire and/or permit a pressure reading from the tire.
  • the core depressor 80 includes a diameter larger than a diameter of the corresponding valve core 30.
  • an inner shoulder 90 surrounds the core depressor 80.
  • the core depressor 80 extends beyond the inner shoulder 90 and toward the bore 70.
  • the core depressor 80 is a suitable length so as the face 15 of the valve stem 10 is flush with the seal 150 before engagement of the core depressor 80 with the valve core 30, as shown in Fig. 1 and 5 . In this manner, a seal is formed between the seal 150 and the face 15 of the valve stem 10 before air is exchanged between the pressure airlock 5 and the valve stem 10. In this way, the "hissing" noise typically associated with filling or testing tires is avoided.
  • An outer shoulder 100 extends from the inner shoulder 90 to create a stepped configuration within the pressure airlock.
  • the outer shoulder 100 preferably extends beyond the core depressor 80.
  • a seal 150 is positioned on the inner shoulder 90 and the outer shoulder 100 and extends within the tip 60.
  • the tip 60 is positioned at an end of the pressure airlock and preferably forms a cavity between the outer shoulder 100 and an inner surface of the tip 60. As such, this cavity is preferably occupied, in part, by the seal 150.
  • the seal 150 preferably abuts a face 15 of the valve stem 10 and the exterior threads 20 when in an engaged position. In this manner, the pressure airlock will create a primary seal around the exterior threads 20 of the valve stem 10 prior to the valve core 30 being depressed, as well as a face seal on the face of the valve stem 10. This combination results in a better user experience, in which the valve core 30 can be depressed and the user will not have to maintain constant pressure on the gauge or inflator to make the seal.
  • the pressure airlock may include a single piece seal 150.
  • the seal 150 may be rubber, foam or any similar pliable material that creates a flexible airtight seal between surfaces.
  • the pressure airlock includes a two piece seal 150.
  • a first piece 155 is positioned on the inner shoulder 90 and a second piece 160 is positioned on the outer shoulder 100.
  • the first piece 155 may include different physical properties from the second piece 160, such as a different hardness, a different color, or other distinguishing characteristics that may be advantageous to a user.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Claims (10)

  1. Druckschleuse für einen Inflator oder ein Messgerät zur Verwendung mit einem Ventilschaft (10) mit Außengewinde (20) und einem Ventileinsatz (30), die Druckschleuse aufweisend:
    eine Leitung (50) in Fluidverbindung mit dem Inflator oder dem Messgerät;
    eine sich von der Leitung (50) erstreckende Spitze (60), wobei die Spitze eine Bohrung (70) aufweist;
    einen innerhalb der Bohrung angeordneten Einsatzdrücker (80);
    eine den Einsatzdrücker (80) umgebende Innenschulter (90), wobei sich der Einsatzdrücker über die Innenschulter hinaus erstreckt;
    eine sich von der Innenschulter aus erstreckende Außenschulter (100), wobei sich die Außenschulter über den Einsatzdrücker hinaus erstreckt;
    eine an der Innenschulter und der Außenschulter angeordnete Dichtung (150), die sich innerhalb der Spitze erstreckt;
    wobei die Dichtung eine zweiteilige Dichtung aufweist, einen ersten, an der Innenschulter angeordneten Teil (155) und einen zweiten, an der Außenschulter angeordneten Teil (160);
    wobei der erste Teil (155) und der zweite Teil (160) der Dichtung eine unterschiedliche Härte aufweisen.
  2. Druckschleuse nach Anspruch 1, wobei der erste Teil (155) andere physikalische Eigenschaften als der zweite Teil (160) beinhaltet.
  3. Druckschleuse nach Anspruch 2, wobei der erste Teil (155) eine andere Farbe als der zweite Teil (160) beinhaltet.
  4. Druckschleuse nach Anspruch 1, wobei der Einsatzdrücker (80) einen Durchmesser aufweist, der größer ist als ein Durchmesser des Ventileinsatzes (30).
  5. Druckschleuse nach Anspruch 1, wobei zwischen der Spitze (60) und der Leitung (50) ein O-Ring (65) angeordnet ist.
  6. Druckschleuse nach Anspruch 1, wobei die Spitze (60) zwischen der Außenschulter (100) und einer Innenfläche der Spitze einen Hohlraum ausbildet.
  7. Druckschleuse nach Anspruch 1, wobei die Dichtung (150) in einer Eingriffsposition an einer Fläche des Ventilschaftes (10) und dem Gewinde (20) anliegt.
  8. Druckschleuse nach Anspruch 1, wobei die Größe der Bohrung (70) dem Außengewinde (20) des Ventilschaftes (10) entspricht.
  9. Druckschleuse nach Anspruch 1, wobei der Einsatzdrücker (80) einen größeren Durchmesser aufweist als der Ventileinsatz (30).
  10. Druckschleuse nach Anspruch 9, wobei sich der Einsatzdrücker (80) über die Innenschulter (90) hinaus erstreckt.
EP19809258.7A 2018-11-01 2019-10-31 Druckschleuse Active EP3874193B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862754277P 2018-11-01 2018-11-01
US16/669,080 US11293565B2 (en) 2018-11-01 2019-10-30 Pressure airlock
PCT/US2019/059187 WO2020092785A1 (en) 2018-11-01 2019-10-31 Pressure airlock

Publications (2)

Publication Number Publication Date
EP3874193A1 EP3874193A1 (de) 2021-09-08
EP3874193B1 true EP3874193B1 (de) 2023-04-05

Family

ID=70458053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19809258.7A Active EP3874193B1 (de) 2018-11-01 2019-10-31 Druckschleuse

Country Status (4)

Country Link
US (1) US11293565B2 (de)
EP (1) EP3874193B1 (de)
CN (1) CN113383187B (de)
WO (1) WO2020092785A1 (de)

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7520292B2 (en) * 2005-05-17 2009-04-21 Brian Weltman Pressure activated trap primer and water hammer combination
US7284419B2 (en) 2005-05-25 2007-10-23 Rutherford Robert B Temporary attachment tire pressure gauge
TWI257903B (en) 2005-08-31 2006-07-11 Teng-Wen Huang Tire pressure detector
TWM318073U (en) * 2007-03-30 2007-09-01 Lo-Pin Wang Air outlet of an inflator
TW201026525A (en) 2009-01-09 2010-07-16 Teng-Wen Huang Leakage prevention tire pressure detector
US8156955B2 (en) 2009-09-10 2012-04-17 Wei-Chi Wang Inflating nozzle assembly
US8245722B2 (en) * 2009-11-24 2012-08-21 Ying-Che Huang Inflation nozzle capable of connecting with two types of tire valves
CN105539024A (zh) 2010-08-23 2016-05-04 伊夸莱尔系统公司 具有辅助端口的阀杆
TW201213169A (en) 2010-09-30 2012-04-01 Beto Engineering & Marketing Dual use valve head for Schrader valve and Presta valve
US8360090B2 (en) 2011-02-14 2013-01-29 Beto Engineering and Marketing Co., Ltd. Schrader valve/Presta valve dual-purpose valve cap
US9016304B2 (en) 2013-01-07 2015-04-28 Beto Engineering and Marketing Co., Ltd. Horizontally-triggerable inflation connector
US8839809B1 (en) * 2013-03-14 2014-09-23 Beto Engineering & Marketing Co., Ltd. Attachment for different air valves
US9133970B2 (en) * 2013-08-21 2015-09-15 Beto Entineering & Marketing Co., Ltd. Attachment for different air valves
TWM491730U (zh) 2014-08-28 2014-12-11 Jiao Hsiung Industry Corp 打氣槍及其氣嘴連接器
JP6163148B2 (ja) 2014-11-20 2017-07-12 長野計器株式会社 圧力センサ
WO2016090218A1 (en) 2014-12-04 2016-06-09 Dana Heavy Vehicle Systems Group, Llc Tire pressure management system
EP3253600A1 (de) 2015-02-06 2017-12-13 Dana Heavy Vehicle Systems Group, LLC Anordnung für ein reifenaufpumpsystem und damit hergestelltes reifenaufpumpsystem
US20170023163A1 (en) * 2015-07-20 2017-01-26 Norma U.S. Holding Llc Heated Connector Assembly
US9989180B2 (en) 2016-03-22 2018-06-05 Beto Engineering & Marketing Co. Ltd. Attachment for air valve
US9989179B2 (en) 2016-03-22 2018-06-05 Beto Engineering & Marketing Co., Ltd. Attachment for different air valve
CN106621130B (zh) * 2016-11-16 2019-03-29 浙江欧伦泰防火设备有限公司 低压阀门释放器及安装方法

Also Published As

Publication number Publication date
US20200141516A1 (en) 2020-05-07
WO2020092785A1 (en) 2020-05-07
US11293565B2 (en) 2022-04-05
CN113383187B (zh) 2023-03-24
CN113383187A (zh) 2021-09-10
EP3874193A1 (de) 2021-09-08

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